Firefly and PC GAMESS-related discussion club

I am just curious that Intel has released a free MPI Library Runtime for Linux (https://software.intel.com/en-us/intel-mpi-library). Is it enough to run firefly code completely (i.e. Firefly version 8.2.0 download links, Linux/Intel MPI, dynamically linked version) or is it necessary to purchase the complete version. I am just wondering because to run firefly we do not need to compile anything but the mpi library.